:root {
  --bg: #ecfeff;
  --card: #ffffff;
  --text: #12303b;
  --muted: #4e6a73;
  --line: #b6e5ec;
  --primary: #0891b2;
  --primary-strong: #0e7490;
  --success: #0f8a4f;
  --money-green: #0f8a4f;
  --alert-bg: #cffafe;
  --shadow: 0 12px 24px rgba(8, 145, 178, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #ecfeff 0%, #f8fdff 48%, #ffffff 100%);
  color: var(--text);
  line-height: 1.45;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  width: min(100%, 980px);
  margin: 0 auto;
  padding: 0 1rem;
}

.topbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
}

.topbar__inner {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.topbar__controls {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.topbar__nav {
  display: flex;
  gap: 0.75rem;
  font-size: 0.95rem;
  flex-wrap: wrap;
}

.topbar__support-link {
  font-weight: 800;
  color: var(--money-green);
}

.topbar__support-link:hover,
.topbar__support-link:focus-visible {
  color: #0b6d3f;
}

.session-badge {
  display: inline-flex;
  align-items: center;
  max-width: min(100%, 20rem);
  min-height: 44px;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid #8ad8e6;
  background: #f3fcfe;
  color: var(--primary-strong);
  font-size: 0.92rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}


.language-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.language-form__label {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.language-form select,
.field input[type="text"],
.field input[type="password"],
.field input[type="search"] {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  font-size: 1rem;
  background: #fff;
}

.language-form select {
  width: auto;
  min-width: 9rem;
  padding-right: 2.25rem;
}

.topbar__nav a,
.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.brand {
  font-weight: 900;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
  color: var(--primary-strong);
}

.page {
  padding-top: 1rem;
  padding-bottom: 3rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  margin-bottom: 1rem;
}

.stack > * + * {
  margin-top: 0.9rem;
}

.hero h1,
.practice-header h1,
.progress-page h1 {
  margin: 0;
  font-size: 1.65rem;
}

.hero h1 {
  font-size: clamp(2.15rem, 5.2vw, 2.9rem);
  line-height: 1.05;
}

.hero__topics {
  margin: 0.55rem 0 0;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--primary-strong);
  letter-spacing: 0.01em;
}

.hero__lede {
  max-width: 52rem;
  font-size: 1.06rem;
  color: var(--text);
}

.hero__catalog-summary {
  margin: 0;
  max-width: 58rem;
  font-size: 0.98rem;
  color: var(--muted);
}

.home-flow-header h2,
.home-subsection h3 {
  margin: 0;
}

.home-flow-header {
  display: grid;
  gap: 0.35rem;
}

.home-flow-header .muted {
  margin: 0;
}

.home-flow-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 760px) {
  .home-flow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.home-flow-card {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}

.home-topics-help,
.home-action-note {
  margin: 0;
}

.section-alert {
  margin-top: 0.5rem;
}

.home-device-utility {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.home-device-utility__copy h3,
.home-device-utility__copy p {
  margin: 0;
}

.home-device-utility__copy p {
  margin-top: 0.35rem;
}

.home-device-utility .btn {
  width: min(100%, 18rem);
}

.field {
  display: grid;
  gap: 0.5rem;
}

.field--inline {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
}

.field--inline input[type="checkbox"] {
  margin: 0.2rem 0 0;
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
}

.field--inline span {
  min-width: 0;
}

.field input[type="text"]:focus,
.field input[type="search"]:focus,
.language-form select:focus {
  outline: 2px solid rgba(8, 145, 178, 0.25);
  border-color: var(--primary);
}

.topic-grid,
.answer-list,
.action-grid,
.lesson-list,
.notation-grid {
  display: grid;
  gap: 0.8rem;
}

.topic-card,
.answer-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.9rem;
  background: #fff;
  min-width: 0;
}

.topic-card__content {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
}

.topic-card__title {
  font-weight: 700;
  overflow-wrap: anywhere;
}

.topic-card__body,
.lesson-list__item p,
.eyebrow,
.progress-chip,
.pill,
.alert,
.focus-check p:last-child,
.muted,
small {
  color: var(--muted);
}

.lesson-list__item,
.topic-summary {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
}

.lesson-list__item:first-of-type,
.topic-summary:first-of-type {
  border-top: 0;
}

.btn {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  color: var(--text);
  min-height: 48px;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  width: 100%;
}

button.btn {
  cursor: pointer;
}

.btn--primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.btn--primary:hover,
.btn--primary:focus {
  background: var(--primary-strong);
}

.btn--secondary {
  border-color: #8ad8e6;
  background: #f3fcfe;
  color: var(--primary-strong);
}

.btn--secondary:hover,
.btn--secondary:focus {
  background: #e4f9fd;
}

.btn--quiet {
  width: auto;
  border-color: transparent;
  background: transparent;
  color: var(--primary-strong);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.btn--quiet:hover,
.btn--quiet:focus {
  background: transparent;
}

.btn--full {
  width: 100%;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.alert {
  background: var(--alert-bg);
  border: 1px solid #9ee7f5;
  border-radius: 16px;
  padding: 0.9rem 1rem;
  margin-bottom: 1rem;
}

.practice-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
}

.progress-chip,
.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: #ecfeff;
  padding: 0.35rem 0.7rem;
  font-size: 0.9rem;
}

.question-body p,
.question-body ul,
.question-body li {
  font-size: 1.02rem;
}

.action-grid {
  grid-template-columns: 1fr;
}

.action-grid > *,
.action-grid form {
  width: 100%;
  min-width: 0;
}

.notation-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.notation-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  display: grid;
  gap: 0.25rem;
}

.focus-check {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.9rem;
}

.home-subsection {
  padding-top: 0.25rem;
}

.home-subsection--topics {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.home-library-panel {
  margin-top: 1.5rem;
}

@media (min-width: 700px) {
  .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .action-grid,
  .home-action-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .topbar__inner,
  .topbar__controls,
  .practice-header,
  .lesson-list__item,
  .topic-summary {
    flex-direction: column;
  }

  .wrap {
    padding: 0 0.85rem;
  }

  .topbar__controls,
  .language-form {
    width: 100%;
    align-items: stretch;
  }

  .brand {
    font-size: 1.55rem;
  }

  .hero__topics {
    font-size: 0.95rem;
  }

  .card {
    padding: 0.9rem;
  }

  .topic-card,
  .answer-option {
    gap: 0.65rem;
  }

  .notation-grid {
    grid-template-columns: 1fr;
  }

  .topic-summary__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .home-action-grid {
    grid-template-columns: 1fr;
  }
}


.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  padding-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.site-footer__copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer__nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer__nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--primary-strong);
  font-weight: 600;
}

.legal-page {
  max-width: 760px;
}

.legal-page__updated {
  margin: 0;
}

.legal-page__sections {
  margin-top: 1rem;
}

.legal-page__section h2 {
  margin-bottom: 0.35rem;
}

.legal-page__section p {
  margin-top: 0;
  color: var(--muted);
}


.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 50;
  padding: 0.75rem 1rem;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid var(--primary);
  box-shadow: var(--shadow);
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 1rem;
}

.topbar__nav a[aria-current="page"] {
  color: var(--primary-strong);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--primary-strong);
  outline-offset: 3px;
}

.alert[role="alert"],
.alert[role="status"] {
  scroll-margin-top: 5rem;
}

.session-state-card {
  border-color: #8ad8e6;
  background: #f8feff;
}

.session-state-card h2 {
  margin: 0;
}

.field small,
.home-topics-help {
  display: block;
}

.language-form select,
.field input[type="text"],
.field input[type="password"],
.field input[type="search"] {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  font-size: 1rem;
  background: #fff;
}

[dir="rtl"] .topbar__inner,
[dir="rtl"] .topbar__controls,
[dir="rtl"] .topbar__nav,
[dir="rtl"] .language-form,
[dir="rtl"] .topic-summary,
[dir="rtl"] .lesson-list__item,
[dir="rtl"] .action-grid,
[dir="rtl"] .field--inline {
  direction: rtl;
}

[dir="rtl"] .field,
[dir="rtl"] .card,
[dir="rtl"] .hero,
[dir="rtl"] .practice-header,
[dir="rtl"] .progress-page,
[dir="rtl"] .question-body,
[dir="rtl"] .lesson-list__item,
[dir="rtl"] .site-footer__inner {
  text-align: right;
}

[dir="rtl"] .skip-link {
  left: auto;
  right: 1rem;
}

@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}


.topbar__nav a {
  min-height: 44px;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
}

.topbar__nav a:hover {
  background: rgba(8, 145, 178, 0.08);
}

.home-library-panel__header,
.lesson-list__heading,
.topic-group-card__header,
.subtopic-group__header,
.library-search,
.library-search__actions,
.lesson-library-actions,
.related-lesson-list,
.topic-chip-list {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.home-library-panel__header,
.lesson-list__heading,
.topic-group-card__header,
.subtopic-group__header {
  justify-content: space-between;
  align-items: start;
}

.home-subtopic-group {
  display: grid;
  gap: 0.25rem;
}

.lesson-list__heading h3,
.lesson-list__subheading h4,
.topic-group-card__header h2,
.subtopic-group__header h3,
.library-hero h1,
.lesson-nav-card h2 {
  margin: 0;
}

.lesson-list__heading p,
.subtopic-group__header p,
.topic-group-card__header p,
.library-hero p {
  margin: 0;
}

.library-hero {
  margin-bottom: 1rem;
}

.library-search {
  align-items: end;
}

.library-search .field {
  flex: 1 1 18rem;
}

.library-search__actions {
  align-items: center;
}

.topic-chip-list {
  align-items: center;
}

.topic-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--primary-strong);
  font-weight: 600;
}

.topic-chip--active {
  background: #ecfeff;
  border-color: #8ad8e6;
}

.breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0;
  margin: 0;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
}

.breadcrumbs li + li::before {
  content: "›";
  color: var(--muted);
}

.related-lesson-list,
.lesson-library-actions {
  align-items: stretch;
}

.related-lesson-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.lesson-nav-card {
  margin-top: 1rem;
}

.subtopic-group {
  display: grid;
  gap: 0.4rem;
}

@media (max-width: 640px) {
  .topbar__nav {
    width: 100%;
    justify-content: space-between;
  }

  .topbar__nav a {
    flex: 1 1 calc(33.333% - 0.5rem);
    justify-content: center;
  }

  .home-library-panel__header,
  .lesson-list__heading,
  .topic-group-card__header,
  .subtopic-group__header,
  .library-search,
  .library-search__actions,
  .lesson-library-actions,
  .related-lesson-list {
    flex-direction: column;
  }

  .topic-chip-list {
    gap: 0.5rem;
  }

  .topic-chip {
    width: 100%;
  }
}

[dir="rtl"] .breadcrumbs li + li::before {
  content: "‹";
}


.home-search-card__header,
.home-search-form,
.home-search-form__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
}

.home-search-form .field {
  flex: 1 1 18rem;
}

.home-search-results {
  display: grid;
  gap: 0.75rem;
}

.home-search-card .eyebrow {
  margin-bottom: 0.2rem;
}

@media (max-width: 720px) {
  .home-search-card__header,
  .home-search-form,
  .home-search-form__actions {
    align-items: stretch;
  }

  .home-search-form__actions > * {
    flex: 1 1 auto;
  }
}


.lesson-section ul,
.lesson-section ol {
  margin: 0;
  padding-left: 1.25rem;
}

.lesson-audio-list,
.prompt-media-panel {
  display: grid;
  gap: 0.85rem;
}

.lesson-audio-card,
.prompt-media-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.9rem;
  background: #f8fdff;
}

.lesson-audio-card__label,
.prompt-media-card__label {
  margin: 0 0 0.6rem 0;
  font-weight: 700;
}

.lesson-audio-card audio,
.prompt-media-card audio {
  width: 100%;
  max-width: 100%;
}

.lesson-audio-card__transcript {
  margin: 0.6rem 0 0;
  color: var(--muted);
}

.lesson-audio-card__ipa {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-style: italic;
}

.phonics-keyboard {
  display: grid;
  gap: 0.75rem;
}

.phonics-keyboard__keys {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.phonics-keyboard__key {
  min-height: 44px;
  min-width: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0.55rem 0.8rem;
  font: inherit;
  cursor: pointer;
}

.phonics-keyboard__key--space {
  min-width: 6rem;
}

.question-type-audio-mcq .question-body,
.question-type-dictation .question-body {
  margin-bottom: 0.25rem;
}

@media (max-width: 640px) {
  .lesson-audio-card,
  .prompt-media-card {
    padding: 0.8rem;
  }

  .phonics-keyboard__keys {
    gap: 0.4rem;
  }

  .phonics-keyboard__key {
    flex: 1 0 calc(20% - 0.4rem);
    min-width: 0;
  }

  .phonics-keyboard__key--space {
    flex-basis: calc(40% - 0.4rem);
  }

  .phonics-keyboard__key--backspace {
    flex-basis: calc(20% - 0.4rem);
  }
}


.lesson-list__copy,
.progress-card__copy {
  min-width: 0;
}

.lesson-list__copy > strong {
  display: block;
  margin-bottom: 0.3rem;
}

.rich-markdown--muted,
.rich-markdown--muted > :where(p, li, blockquote) {
  color: var(--muted);
}

.rich-markdown--inline > :first-child {
  margin-top: 0;
}

.rich-markdown--inline > :last-child {
  margin-bottom: 0;
}

.rich-markdown--inline :where(ul, ol) {
  margin: 0.35rem 0 0 1.1rem;
  padding: 0;
}

.rich-markdown--inline :where(p, ul, ol, blockquote) {
  margin-block: 0.35rem;
}


.rich-markdown {
  overflow-wrap: anywhere;
}

.rich-markdown > :first-child {
  margin-top: 0;
}

.rich-markdown > :last-child {
  margin-bottom: 0;
}

.rich-markdown a {
  color: var(--primary-strong);
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.rich-markdown code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.95em;
  background: #e6f9fc;
  border-radius: 0.4rem;
  padding: 0.08rem 0.35rem;
}

.rich-markdown pre {
  overflow-x: auto;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  background: #e6f9fc;
  border: 1px solid var(--line);
}

.rich-markdown pre code {
  display: block;
  padding: 0;
  background: transparent;
}

.answer-option__copy {
  display: inline;
  min-width: 0;
}

.answer-option__label {
  color: var(--text);
}

mjx-container[display="true"] {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.25rem 0;
}


.kofi-reminder {
  position: fixed;
  inset-inline-end: 1rem;
  inset-block-end: 1rem;
  z-index: 35;
  width: min(calc(100% - 2rem), 24rem);
}

.kofi-reminder__card {
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1rem 1rem 0.95rem;
}

.kofi-reminder__dismiss {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  float: right;
  font-size: 1.35rem;
  line-height: 1;
  padding: 0;
}

.kofi-reminder__title {
  margin: 0 2rem 0.45rem 0;
  font-size: 1.02rem;
}

.kofi-reminder__body {
  margin: 0 0 0.85rem;
  color: var(--muted);
}

.kofi-reminder__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.kofi-reminder--visible {
  animation: kofi-reminder-fade 180ms ease-out;
}

@keyframes kofi-reminder-fade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .kofi-reminder {
    inset-inline: 0.75rem;
    width: auto;
  }

  .kofi-reminder__actions .btn {
    flex: 1 1 11rem;
    justify-content: center;
  }
}